CN101621749A - Digital clustering communication system and implementation method of clustering services - Google Patents
Digital clustering communication system and implementation method of clustering services Download PDFInfo
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- CN101621749A CN101621749A CN200910090055A CN200910090055A CN101621749A CN 101621749 A CN101621749 A CN 101621749A CN 200910090055 A CN200910090055 A CN 200910090055A CN 200910090055 A CN200910090055 A CN 200910090055A CN 101621749 A CN101621749 A CN 101621749A
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Abstract
The invention discloses a digital clustering communication system, in particular a digital clustering communication system based on a TE-LET technology, which is realized on the base of a time division-long term evolution technology and by expanding the functions of a certain network elements and adding new network elements of the prior TD-LTE technology. The invention also provides two clustering service implementation methods. The system and the methods not only can better provide broadband clustering multimedia services but also can backwards evolve smoothly.
Description
Technical field
The present invention relates to mobile communication technology, particularly a kind of wideband digital trunked communication system and clustering service implementation methods based on time-division Long Term Evolution (TD-LTE, Time Division-Long Term Evolution) technology.
Background technology
Owing to possess characteristics such as distinctive scheduling, group calling and short calling, digital clustering communication system has been brought into play enormous function in the specialized communication field.Since the mid-90 in 20th century, digital clustering communication system is risen in the world, has obtained using widely, and has obtained good economic benefit and social benefit.
Existing digital cluster communication system mainly comprises: APCO25, Tetralpol, EDACS, DIMRS (iDEN), TETRA, IDRA, Geotek, and based on the GoTa of code division multiple access (CDMA) technology with based on the GT800 of global system for mobile communications (GSM) technology etc.The digital clustering communication system of several extensive uses of following brief description.
(1)iDEN
The iDEN system is based on the digital clustering communication system of digital cellular network, and group service and traditional cellular voice and data service are provided.Fig. 1 is the composition structural representation of existing iDEN system.Mobile station is responsible for handling cell phone, dispatch call, circuit switched data, internet access, and the oam of mobile station and base station sub-system etc.; Base station sub-system is responsible for base station sub-system and is connected with the data of other subsystem with the wireless connections and the base station sub-system of terminal.The iDEN system approaches the public network system, remove scheduler subsystem after, its structure and GSM network are basic identical.
(2)TETRA
The TETRA system is at the digital cluster communication private network of European public safety demand exploitation, possesses scheduling, phone, transfer of data and SMS.The network configuration of TETRA system is simple, and scale is changeable, and the inside modules structure is unrestricted.Fig. 2 is the composition structural representation of existing TETRA system.As shown in Figure 2, a typical TETRA system comprises exchange and management infrastructure (SwMI) and terminal two parts.
(3)GoTa
The GoTa system is a kind of digital clustering communication system based on CDMA technology, realizes group service by increase scheduler subsystem in the CDMA public network.Fig. 3 is the composition structural representation of existing GoTa system.As shown in Figure 3, comprise basic cdma system network element in the GoTa system, as terminal, base station transceiver (BTS), base station controller (BSC), mobile switching centre (MSC), VLR Visitor Location Register (VLR), attaching position register (HLR) and AUC (AC) etc.In order to realize group service, than existing cdma system, increase scheduler subsystem in the GoTa system, comprised dispatching control center (DCC) and dispatching home location register (PHR), be used to realize the storage and the management of trunked call control and cluster user and group information.Wherein, further comprise trunking dispatch server (PDS) and two functional entitys of colony dispatching controller (PDC) among the DCC, PDC is as the gateway between BSC and the PDS, is used to finish transmission of the compiling of group service data flow, distribution and trunked call signaling etc.
(4)GT800
The GT800 system realizes the digital clustering communication system of clustering functionality on the GSM network platform, its development is divided into two stages: the phase I is positioned Digital Clustering public network system, adopt the GSM access technology, support the business function of existing main flow system, performance index reach or are better than existing system; Second stage is positioned Digital Clustering private network system and public network system, is the enhancing of phase I, supports GSM and TD-SCDMA access technology simultaneously, by dual-mode terminal to TD-SCDMA evolution.The composition structure of GT800 system and the composition structure of common GSM network are basic identical, and as shown in Figure 4, Fig. 4 is the composition structural representation of existing GT800 system.The GT800 system has increased Group Call Register (GCR) in gsm system, be used for storage sets user profile, by the function of enhanced MSC, VLR and HLR, improves air interface, supports the characteristic demand of quick foundation of group calling/calling and Channel Sharing.
By above-mentioned introduction as can be seen, existing digital clustering communication system is based on all that second generation mobile communication system (2G) or 3-G (Generation Three mobile communication system) (3G) realize, so that narrow band services such as PTT (PTT) voice to be provided, available supplementary data traffic speed is lower.But, flourish along with the progress of information technology and internet, applications, cluster users such as society's every profession and trade, enterprise customer and government department are changing to the direction of the wideband multimedia that integrates voice, data, image and video from common schedule voice gradually to the business demand of digital clustering communication system, hope by big bandwidth, two-forty, have the wideband digital trunked communication system that service quality (QoS) guarantees and promote operating efficiency, accelerate informatization, but existing digital clustering communication system also can't satisfy above-mentioned requirements.In addition, existing digital clustering communication system is many to realize group service in circuit domain, and smooth evolution does not backward meet the development trend of mobile communication system.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of digital clustering communication system, can support broadband cluster multimedia service, and smoothly evolution backward.
Another object of the present invention is to provide two kinds of clustering service implementation methods, can support broadband cluster multimedia service, and smoothly evolution backward.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of digital clustering communication system, comprise: terminal, broadband wireless access subsystem, network subsystem and operation and maintenance sub system, wherein, comprise enhanced base station E-eNodeB in the described broadband wireless access subsystem, comprise enhancement mode mobile management entity eMME, gateway S-GW, enhancement mode home subscriber server eHSS, enhanced packet data network gateway eP-GW in the described network subsystem;
Further comprise wireless colony scheduling feature module RTDF among the described E-eNodeB, being used to carry out group service handles, comprise: receive cluster control signaling, be the terminal distribution Radio Resource from eMME, and will be sent to terminal from the business data flow that S-GW receives;
Further comprise cluster control function module TCF among the described eMME, be used for setting up, safeguard and the release group service, carry out right of speech management and scheduling; Terminal is carried out authentication and for the group service mandate, be the foundation of the terminal originating service carrying of authentication success;
Further comprise cluster block functions module TPF among the described eP-GW, be used for the group service data flow being shone upon, being duplicated and be distributed to S-GW, and initiate the foundation of service bearer according to business characteristic and service quality QoS demand that terminal is initiated;
Further comprise cluster user server TSS among the described eHSS, be used to store the group user profile relevant with group service, for the opening an account of terminal, cancellation, service authentication and mandate and charging provide foundation with management.
Preferably, described RTDF is further used for, and when the network element in described E-eNodeB and described network subsystem is out of touch, handles the cluster-specific business of the terminal in the described E-eNodeB coverage.
Preferably,
Link to each other by the LTE-Uu interface between described E-eNodeB and the described terminal;
Link to each other by X2 interface between described E-eNodeB and the E-eNodeB;
Link to each other by S1-MME interface between described E-eNodeB and the described eMME;
Link to each other by S1-U interface between described E-eNodeB and the described S-GW;
Link to each other by the S6a interface between described eMME and the described eHSS;
Link to each other by the S11 interface between described eMME and the described S-GW;
Link to each other by the S5 interface between described S-GW and the described eP-GW.
Preferably, described terminal comprises: portable terminal, fixed station and dispatching desk;
Wherein, described portable terminal further comprises hand-held travelling carriage and Vehicle mounted station; Described dispatching desk further comprises wired dispatching desk and wireless dispatching platform.
Preferably,
When described terminal is wired dispatching desk, further comprise scheduling gateway D-GW in the described network subsystem, be used for being responsible for the access of wired dispatching desk, wired dispatching desk is carried out authentication, and control signaling between the responsible wired dispatching desk of transmission and eMME and the eHSS and the business data flow between wired dispatching desk and the eP-GW;
Described wired dispatching desk is dispatched and is managed intrasystem cluster user and group service by described D-GW access network subsystem.
Preferably, described D-GW is further used for, and inserts other digital clustering communication system except that the digital clustering communication system of place, finishes interconnecting between the different digital trunked communication system.
Preferably,
Link to each other by the D1-MME interface between described D-GW and the described eMME;
Link to each other by the D1-U interface between described D-GW and the described eP-GW;
Link to each other by the D6a interface between described D-GW and the described eHSS;
Link to each other by the Du interface between described D-GW and the described wired dispatching desk;
Link to each other by the DGi interface between described D-GW and described other digital clustering communication system.
A kind of clustering service implementation methods, wherein, professional initiation terminal is portable terminal or fixed station or wireless dispatching platform; This method comprises:
The professional starting up of terminal of initiating carries out network registry, sets up default bearer, and carries out the group service registration;
The professional terminal of initiating is passed through enhanced base station E-eNodeB to enhancement mode mobile management entity eMME signalling of bouquet business request information;
EMME and enhancement mode home subscriber server eHSS carry out information interaction, and business is initiated the terminal carrying out service authentication;
If authentication is passed through, then eMME initiates the cluster loading establishing process, sets up the carrying between gateway S-GW and the enhanced packet data network gateway eP-GW;
EMME indication E-eNodeB is professional terminal and the professional receiving terminal distributing radio resource except that wired dispatching desk initiated, and sets up the carrying between radio bearer and E-eNodeB and the S-GW;
EP-GW will be received from professional business data flow of initiating terminal and shine upon, duplicates and distribute, and be sent to professional receiving terminal.
Preferably, describedly be sent to professional receiving terminal and comprise:
If professional receiving terminal is portable terminal or fixed station or wireless dispatching platform, then eP-GW shines upon business data flow, duplicate and distributes, and is sent to professional receiving terminal by S-GW and E-eNodeB;
If professional receiving terminal is wired dispatching desk, then eP-GW directly is sent to business data flow professional receiving terminal by scheduling gateway D-GW.
A kind of clustering service implementation methods, wherein, professional initiation terminal is wired dispatching desk; This method comprises:
The professional starting up of terminal of initiating carries out network registry;
The professional terminal of initiating is to scheduling gateway D-GW signalling of bouquet business request information;
D-GW and enhancement mode home subscriber server eHSS carry out information interaction, and business is initiated the terminal carrying out service authentication;
If authentication is passed through, then D-GW is to enhancement mode mobile management entity eMME signalling of bouquet business request information;
EMME initiates the cluster loading establishing process, sets up the carrying between gateway S-GW and the enhanced packet data network gateway eP-GW;
E-eNodeB is for the professional receiving terminal distributing radio resource except that wired dispatching desk in the eMME indication, sets up the carrying between radio bearer and E-eNodeB and the S-GW;
EP-GW will be received from professional business data flow of initiating terminal and shine upon, duplicates and distribute, and finally be sent to professional receiving terminal.
Preferably, described eP-GW reception is initiated from business further to comprise before the business data flow of terminal:
The professional terminal of initiating sends business data flow by D-GW to eP-GW.
As seen, adopt technical scheme of the present invention, by the function of some network element in the existing TD-LTE technology being expanded and being increased new network element, obtain digital clustering communication system based on the TE-LTE technology, when the baseset group business is provided, abundant high-quality broadband cluster multimedia service also can further be provided, thereby for sector application provides in real time, command scheduling service system efficiently; And, because the TD-LTE technology adopts low-cost, scalable, the configurable all-IP flattening network architecture, so provide good basis for follow-up evolution based on the digital clustering communication system of TD-LTE technology.
Description of drawings
Fig. 1 is the composition structural representation of existing iDEN system;
Fig. 2 is the composition structural representation of existing TETRA system;
Fig. 3 is the composition structural representation of existing GoTa system;
Fig. 4 is the composition structural representation of existing GT800 system;
Fig. 5 is the composition structural representation of digital clustering communication system embodiment of the present invention;
Fig. 6 is the flow chart of clustering service implementation methods first embodiment of the present invention;
Fig. 7 is the flow chart of clustering service implementation methods second embodiment of the present invention.
Embodiment
At problems of the prior art, a kind of new digital clustering communication system is proposed among the present invention, this digital clustering communication system realizes based on the TD-LTE technology.The TD-LTE technology is a kind of TD SDMA (TD-SCDMA) evolution technology, is the model that mobile communication and broadband wireless access are merged, and also is one of mainstream standard of following wide-band mobile communication.To inherit plurality of advantages such as the two-forty of TD-LTE technology and big bandwidth based on the digital clustering communication system of TD-LTE technology, compare with existing digital clustering communication system, have bigger channel capacity, the higher availability of frequency spectrum, stronger antijamming capability and better transmission property, not only can satisfy the demand of modern digital trunked communication systems such as big capacity, big bandwidth, two-forty and high spectrum utilization, and have the incomparable advantage of other broadband wireless technology aspect the independence of system research and development.
Digital clustering communication system based on the TD-LTE technology can provide descending 100Mbps, the high data transfer rates of up 50Mbps, when being provided, baseset group business (group calling, individual calling, broadcast ﹠ call etc.) can also provide abundant high-quality broadband cluster multimedia service, as real-time video transmission, visual group call, multimedia broadcasting and high-speed Internet access etc., for sector application provides in real time, command scheduling service system efficiently.
In addition, because the digital clustering communication system based on the TD-LTE technology is to realize clustering functionality by increase the processing module relevant with group service in the network element of existing TD-LTE public access mobile radio, therefore can original business of TD-LTE public access mobile radio not impacted; And, abandoned the proprietary mode of channel in 2G and the 3G system based on the wideband digital trunked communication system of TD-LTE technology, adopt the mode of Channel Sharing to use Radio Resource, meet the characteristic of user's sharing wireless channel in the group service, make that the realization of group service is more simple; Have, the TD-LTE technology adopts low-cost, scalable, the configurable all-IP flattening network architecture again, for the follow-up evolution based on the digital clustering communication system of TD-LTE technology provides good basis.
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.
Fig. 5 is the composition structural representation of digital clustering communication system embodiment of the present invention.As shown in Figure 5, comprising: terminal, broadband wireless access subsystem, network subsystem and four chief components of operation and maintenance sub system; Below each part is described in detail respectively.
1, terminal
The terminal of mentioning in the scheme of the present invention is meant the equipment that the user can direct control, as portable terminal, fixed station, dispatching desk etc.Wherein, portable terminal can specifically comprise hand-held travelling carriage and Vehicle mounted station etc., and dispatching desk comprises wired dispatching desk and wireless dispatching platform.
Described portable terminal and fixed station have increased the PTT button on existing TD-LTE terminal, have PTT and call out hands-free automatically answering and function such as talker's sign, and specific implementation is known in this field, repeats no more.
Dispatching desk is the network element that increases newly in the scheme of the present invention, for dispatcher or keeper provide operating platform, can initiate and participate in group services such as group calling, broadcast ﹠ call, and can realize scheduling and management to cluster user and group service.
2, broadband wireless access subsystem
The broadband wireless access subsystem mainly is made up of enhanced base station (E-eNodeB).Compared with prior art, E-eNodeB in the scheme of the present invention has increased a wireless colony scheduling feature module (RTDF) on the basis of original E-eNodeB, to support group service, promptly be used for being responsible for the relevant treatment of group service, comprise: from enhancement mode mobile management entity (eMME) receive cluster control signaling, for the terminal distribution Radio Resource (as, for receiving the descending shared Radio Resource of terminal place cell allocation of business data flow), and the business data flow that will send from the business initiation terminal that S-GW receives is sent to professional receiving terminal etc.In addition, in order to support fail soft function, RTDF needs can be at the network element in E-eNodeB and the network subsystem, when out of touch, handles the part cluster-specific business of the interior terminal of place E-eNodeB coverage, as group-calling service as eMME and S-GW etc.
3, network subsystem
Network subsystem mainly is made up of eMME, gateway (S-GW), enhancement mode home subscriber server (eHSS), enhanced packet data network gateway (eP-GW) and scheduling gateway (D-GW) etc., is used to finish calling control, colony dispatching, the transmission of business data flow and the functions such as data management of cluster user of cluster user.
Wherein, eMME is a nucleus equipment of realizing group service, realizes the cluster controlled function by increase cluster control function module (TCF) on the basis of original MME.Specifically, TCF is responsible for foundation, safeguards and discharges various group services as the control centre of trunked call, carries out right of speech management and scheduling; In addition, also be responsible for terminal is carried out the mandate of authentication and group service, be the foundation of the terminal originating service carrying of authentication success.
S-GW is the terminal point that connects the packet data interface of broadband wireless access subsystem, mainly is responsible for the route and the preceding commentaries on classics of packet.
EP-GW is the gateway that connects outer data network, on the basis of original P-GW, increased cluster block functions module (TPF), be used to finish the group service data flow mapping, duplicate and distribute (being distributed to S-GW), and the characteristics and the QoS demand of the group service of initiating according to terminal are initiated the foundation of service bearer.
EHSS has increased cluster user server (TSS) on the basis of original HSS, be used to store the group user profile relevant with group service, for the network elements such as eMME in the network subsystem provide that cluster user is opened an account, the foundation of cancellation, service authentication and mandate and charging with management.Above-mentioned group of user profile mainly comprises: group ID (Group ID) tabulation, User Priority and the dispatching desk tabulation etc. of group under each user.
D-GW is a network element entity newly-increased in the scheme of the present invention, and the access of wired dispatching desk is provided, and wired dispatching desk is carried out authentication; In addition, control signaling between eMME in also responsible wired dispatching desk of transmission and the network subsystem and the eHSS etc. and the business data flow between wired dispatching desk and the eP-GW; Have, D-GW also is responsible for inserting other digital clustering communication system, finishes interconnecting between the different digital trunked communication system again.
4, operation and maintenance sub system
Comprise two kinds of equipment in the operation and maintenance sub system, a kind of for operator's use, be used for the maintenance and management of network system equipment, as systematic function configuration, device status monitoring etc.; A kind of is user management device, and the user data management function in the native system is provided; Can carry out the operations such as change of the opening an account of cluster user, cancellation and customer service authority by operation and maintenance sub system.
In addition, because digital clustering communication system shown in Figure 5 realizes based on the TD-LTE technology, so interface still continues to use the interface definition of TD-LTE technology, and former interface signaling is improved; But,, therefore need the interface between redetermination D-GW and other network element owing to increased the D-GW network element newly in the network subsystem.Interface between each network element is as follows:
Link to each other by the LTE-Uu interface between terminal and the broadband wireless access subsystem; E-eNodeB links to each other by X2 interface with E-eNodeB; E-eNodeB links to each other by S1-MME interface with eMME; E-eNodeB links to each other by S1-U interface with S-GW; EMME links to each other by the S6a interface with eHSS; EMME links to each other by the S11 interface with S-GW; S-GW links to each other by the S5 interface with eP-GW.
Wherein, need improved interface to comprise:
LTE-Uu interface: expand the LTE-Uu interface signaling, increase that visual group calling, multimedia transmit, short calling is set up, dynamic relevant LTE-Uu interface signaling such as reorganization and fail soft;
S1 interface (comprising S1-MME and S1-U): expand the S1 interface signaling, increase control command, realize functions such as visual group calling, multimedia transmission, priority management, distant getting killed/brings back to life and dynamic reorganization to terminal;
S6a interface: expand the S6a interface signaling, support the transmission of the data of safety that cluster user is relevant with group service, increase the authentication of cluster user and the management process of verification process and group user profile.
Need the interface of redetermination to comprise:
D1-U interface between D1-MME interface, D-GW and the eP-GW between D-GW and the eMME, and the D6a interface between D-GW and the eHSS.Wherein, the D1-MME interface is used for the transmission trunking scheduling control signaling; The D1-U interface is used for transmission trunking service user plane data; The D6a interface is used for professional relevant user profile of transmission trunking and data of safety etc.
In addition, the interface that defines between wired dispatching desk and the D-GW is the Du interface, is used for transmitting and scheduling control signaling and group service data flow; Interface between definition D-GW place digital clustering communication system and other digital clustering communication system is the DGi interface, is used to realize interconnecting between the different digital trunked communication system.
Based on above-mentioned introduction, Fig. 6 is the flow chart of clustering service implementation methods first embodiment of the present invention.As shown in Figure 6, may further comprise the steps:
Step 601: the professional starting up of terminal of initiating, carry out network registry, set up default bearer, and carry out the group service registration.
For the arbitrary terminal except that wired dispatching desk in the system, no matter its follow-up will to initiate terminal as business still be professional receiving terminal, after its start, all will carry out the described process of this step, promptly at first adhere to (Attach) process, carry out network registry, and set up default bearer; Then, send Non-Access Stratum (NAS) message to eMME, carry out the group service registration by the E-eNodeB in the broadband wireless access subsystem.In the group service registration process, eMME will carry out authentication to terminal, after authentication is passed through, finish the registration of group service.
Step 602: professional initiate terminal by E-eNodeB to eMME signalling of bouquet business request information; EMME and eHSS carry out information interaction, and business is initiated the terminal carrying out service authentication; If authentication is passed through, then eMME initiates the cluster loading establishing process, sets up the carrying between S-GW and the eP-GW.
In this step, professional initiate terminal by E-eNodeB to eMME signalling of bouquet business request information; After eMME receives the group service request message, carry out information interaction, business is initiated the terminal carrying out service authentication by S6a interface and eHSS; If authentication is not passed through, then eMME can return the message that has Reason For Denial, the professional group service request of initiating terminal of refusal, if authentication is passed through, then eMME can initiate the cluster loading establishing process, set up the S-GW of network side and the carrying between the eP-GW, in this process, Signalling exchange is finished by S11 interface and S5 interface.
Step 603:eMME indication E-eNodeB is professional terminal and the professional receiving terminal distributing radio resource except that wired dispatching desk initiated, and sets up the carrying between radio bearer and E-eNodeB and the S-GW.
After network side load was set up and finished, eMME indication E-eNodeB was professional terminal and professional receiving terminal (except the wired dispatching desk) distributing radio resource initiated, and sets up the carrying between radio bearer and E-eNodeB and the S-GW.In this process, Signalling exchange is finished by LTE-Uu interface and S1-MME interface.
Step 604:eP-GW will be received from professional business data flow of initiating terminal and shine upon, duplicates and distribute, and finally be sent to professional receiving terminal.
In this step, if professional receiving terminal is portable terminal or fixed station or wireless dispatching platform, then eP-GW shines upon business data flow, duplicate and distributes, and is sent to professional receiving terminal by S-GW and E-eNodeB; If professional receiving terminal is wired dispatching desk, then eP-GW directly is sent to business data flow professional receiving terminal by D-GW.
Need to prove that in actual applications, the professional terminal of initiating may belong to identical E-eNodeB, S-GW and eP-GW with professional receiving terminal, also may belong to different E-eNodeB, S-GW and eP-GW; If belong to different E-eNodeB, S-GW and eP-GW, then in this step, the professional terminal of initiating is by E-eNodeB, the S-GW at self place and the eP-GW that eP-GW is sent to business data flow at professional receiving terminal place, the eP-GW at professional receiving terminal place shines upon business data flow, duplicate and is distributed to the S-GW and the E-eNodeB at professional receiving terminal place, and finally is sent to professional receiving terminal.
Fig. 7 is the flow chart of clustering service implementation methods second embodiment of the present invention.Compare with embodiment illustrated in fig. 6, difference is that it is wired dispatching desk that the business in the present embodiment is initiated user terminal.As shown in Figure 7, may further comprise the steps:
Step 701: the professional starting up of terminal of initiating, carry out network registry.
Step 702: the professional terminal of initiating is to D-GW signalling of bouquet business request information; D-GW and eHSS carry out information interaction, and business is initiated the terminal carrying out service authentication; If authentication is passed through, then D-GW is to eMME signalling of bouquet business request information; EMME initiates the cluster loading establishing process, sets up the carrying between S-GW and the eP-GW.
E-eNodeB is for the professional receiving terminal distributing radio resource except that wired dispatching desk in step 703:eMME indication, sets up the carrying between radio bearer and E-eNodeB and the S-GW.
Step 704:eP-GW will be received from professional business data flow of initiating terminal and shine upon, duplicates and distribute, and finally be sent to professional receiving terminal.
In this step, the professional terminal of initiating directly sends business data flow to eP-GW by D-GW.
In a word, adopt the digital broadband communication system based on the TD-LTE technology of the present invention, not only can support broadband cluster multimedia service, thereby satisfy following sector application to professional demand such as high-speed Internet access, video telephone, mobile TV, video request program, and, therefore be convenient to follow-up smooth evolution owing to adopted low-cost, scalable, the configurable all-IP flattening network architecture.
In sum, more than be preferred embodiment of the present invention only, be not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1, a kind of digital clustering communication system, comprise: terminal, broadband wireless access subsystem, network subsystem and operation and maintenance sub system, wherein, comprise enhanced base station E-eNodeB in the described broadband wireless access subsystem, comprise enhancement mode mobile management entity eMME, gateway S-GW, enhancement mode home subscriber server eHSS, enhanced packet data network gateway eP-GW in the described network subsystem; It is characterized in that,
Further comprise wireless colony scheduling feature module RTDF among the described E-eNodeB, being used to carry out group service handles, comprise: receive cluster control signaling, be the terminal distribution Radio Resource from eMME, and will be sent to terminal from the business data flow that S-GW receives;
Further comprise cluster control function module TCF among the described eMME, be used for setting up, safeguard and the release group service, carry out right of speech management and scheduling; Terminal is carried out authentication and for the group service mandate, be the foundation of the terminal originating service carrying of authentication success;
Further comprise cluster block functions module TPF among the described eP-GW, be used for the group service data flow being shone upon, being duplicated and be distributed to S-GW, and initiate the foundation of service bearer according to business characteristic and service quality QoS demand that terminal is initiated;
Further comprise cluster user server TSS among the described eHSS, be used to store the group user profile relevant with group service, for the opening an account of terminal, cancellation, service authentication and mandate and charging provide foundation with management.
2, digital clustering communication system according to claim 1, it is characterized in that, described RTDF is further used for, and when the network element in described E-eNodeB and described network subsystem is out of touch, handles the cluster-specific business of the terminal in the described E-eNodeB coverage.
3, digital clustering communication system according to claim 1 is characterized in that,
Link to each other by the LTE-Uu interface between described E-eNodeB and the described terminal;
Link to each other by X2 interface between described E-eNodeB and the E-eNodeB;
Link to each other by S1-MME interface between described E-eNodeB and the described eMME;
Link to each other by S1-U interface between described E-eNodeB and the described S-GW;
Link to each other by the S6a interface between described eMME and the described eHSS;
Link to each other by the S11 interface between described eMME and the described S-GW;
Link to each other by the S5 interface between described S-GW and the described eP-GW.
4, according to claim 1,2 or 3 described digital clustering communication systems, it is characterized in that described terminal comprises: portable terminal, fixed station and dispatching desk;
Wherein, described portable terminal further comprises hand-held travelling carriage and Vehicle mounted station; Described dispatching desk further comprises wired dispatching desk and wireless dispatching platform.
5, digital clustering communication system according to claim 4 is characterized in that,
When described terminal is wired dispatching desk, further comprise scheduling gateway D-GW in the described network subsystem, be used for being responsible for the access of wired dispatching desk, wired dispatching desk is carried out authentication, and control signaling between the responsible wired dispatching desk of transmission and eMME and the eHSS and the business data flow between wired dispatching desk and the eP-GW;
Described wired dispatching desk is dispatched and is managed intrasystem cluster user and group service by described D-GW access network subsystem.
6, digital clustering communication system according to claim 5, it is characterized in that, described D-GW is further used for, and inserts other digital clustering communication system except that the digital clustering communication system of place, finishes interconnecting between the different digital trunked communication system.
7, digital clustering communication system according to claim 6 is characterized in that,
Link to each other by the D1-MME interface between described D-GW and the described eMME;
Link to each other by the D1-U interface between described D-GW and the described eP-GW;
Link to each other by the D6a interface between described D-GW and the described eHSS;
Link to each other by the Du interface between described D-GW and the described wired dispatching desk;
Link to each other by the DGi interface between described D-GW and described other digital clustering communication system.
8, a kind of clustering service implementation methods is characterized in that, professional initiation terminal is portable terminal or fixed station or wireless dispatching platform; This method comprises:
The professional starting up of terminal of initiating carries out network registry, sets up default bearer, and carries out the group service registration;
The professional terminal of initiating is passed through enhanced base station E-eNodeB to enhancement mode mobile management entity eMME signalling of bouquet business request information;
EMME and enhancement mode home subscriber server eHSS carry out information interaction, and business is initiated the terminal carrying out service authentication;
If authentication is passed through, then eMME initiates the cluster loading establishing process, sets up the carrying between gateway S-GW and the enhanced packet data network gateway eP-GW;
EMME indication E-eNodeB is professional terminal and the professional receiving terminal distributing radio resource except that wired dispatching desk initiated, and sets up the carrying between radio bearer and E-eNodeB and the S-GW;
EP-GW will be received from professional business data flow of initiating terminal and shine upon, duplicates and distribute, and be sent to professional receiving terminal.
9, clustering service implementation methods according to claim 8 is characterized in that, describedly is sent to professional receiving terminal and comprises:
If professional receiving terminal is portable terminal or fixed station or wireless dispatching platform, then eP-GW shines upon business data flow, duplicate and distributes, and is sent to professional receiving terminal by S-GW and E-eNodeB;
If professional receiving terminal is wired dispatching desk, then eP-GW directly is sent to business data flow professional receiving terminal by scheduling gateway D-GW.
10, a kind of clustering service implementation methods is characterized in that, professional initiation terminal is wired dispatching desk, and this method comprises:
The professional starting up of terminal of initiating carries out network registry;
The professional terminal of initiating is to scheduling gateway D-GW signalling of bouquet business request information;
D-GW and enhancement mode home subscriber server eHSS carry out information interaction, and business is initiated the terminal carrying out service authentication;
If authentication is passed through, then D-GW is to enhancement mode mobile management entity eMME signalling of bouquet business request information;
EMME initiates the cluster loading establishing process, sets up the carrying between gateway S-GW and the enhanced packet data network gateway eP-GW;
E-eNodeB is for the professional receiving terminal distributing radio resource except that wired dispatching desk in the eMME indication, sets up the carrying between radio bearer and E-eNodeB and the S-GW;
EP-GW will be received from professional business data flow of initiating terminal and shine upon, duplicates and distribute, and finally be sent to professional receiving terminal.
11, clustering service implementation methods according to claim 10 is characterized in that, described eP-GW reception is initiated from business further to comprise before the business data flow of terminal:
The professional terminal of initiating sends business data flow by D-GW to eP-GW.
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